Browsing Natural and Agricultural Sciences by Subject "Eutrophication"
Now showing items 1-7 of 7
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The application of diatom-based pollution indices in the Vaal catchment
(North-West University, 2004)South Africa is a semi arid country and the provision of water clean water to a steadily growing population is currently one of the major challenges facing governmental organisations. Water resources in South Africa are ... -
Assessment of water quality and associated impacts of the sewage discharges into the Mooi River Catchment
(North-West University (South Africa)North-West University, 2020)Population growth in developing cities is putting pressure on the wastewater treatment plants. The improper treated sewage entering the aquatic environment deteriorates the water quality of the receiving water resource. ... -
Changes in density and composition of algal assemblages over time in two water purification plants
(North-West University, 2012)In recent years, due to a change in the water situation in South–Africa and the effect of eutrophication in our water systems, there has been a significant increase in algal abundance and changes in species composition. ... -
Modelling the water quality in dams within the Umgeni Water operational area with emphasis on algal relations
(North-West University, 2007)Based on many years of water quality (including algal) and water treatment cost data, available at Umgeni Water, a study was undertaken to better understand the water quality relationships in man made lakes within the ... -
Nutrient reduction options in Hartbeespoort Dam catchments to lower in-dam eutrophication status
(2015)Eutrophication of surface water constitute a major threat to the provision of raw potable and irrigation water in South Africa, being largely dependent on impounded water in order to ensure water supply . South Africa is ... -
Phosphatase activities of riverine phytoplankton in the Vaal river (South Africa) : physiological responses of nuisance species to different nutrient regimes
(North-West University (South Africa), 2002)The theme of this thesis is the ecophysiological basis for development of massoccurrences of phytoplankton species in aquatic environments. Research concerning the reasons for harmful algal bloom (HAB) formation has been ... -
Sustainable drinking water supply service and development in the face of different resource challenges : a case study of Midvaal Water Company, South Africa
(North-West University (South Africa), 2019)Water quality of resources in large parts of South Africa is declining. The Vaal River is heavily polluted when it reaches its mid-section at Midvaal Water Company in the North-West Province. Midvaal, a water service ...